Master Redis CLI: Essential Commands for Managing Keys, Backups, and Restoration

1. Connect

./redis-cli -h 127.0.0.1 -p 6379 -a admin@2020

-h redis host address

-a redis password

-p redis port

2. Select Database (0‑15)

127.0.0.1:6379[3]> select 3
OK

3. View All Keys

127.0.0.1:6379[3]> keys *
1) "systemSetting:settingKey"
2) "license_count:sync"
3) "serviceHub:editing"

4. Get Value of a Key

get key

5. Delete One or Multiple Keys

del key key2

6. Count Keys in Current Database

127.0.0.1:6379> select 3
OK
127.0.0.1:6379> dbsize
(integer) 3

7. Retrieve Redis Server Information

info

8. List All Databases and Key Statistics

127.0.0.1:6379[3]> info keyspace
# Keyspace
db1:keys=85,expires=85,avg_ttl=36119200
db2:keys=31,expires=3,avg_ttl=7267446
db3:keys=3,expires=1,avg_ttl=90056850
db4:keys=2,expires=0,avg_ttl=0
db5:keys=3,expires=1,avg_ttl=1137909600
db6:keys=333,expires=53,avg_ttl=46104293
db8:keys=78,expires=35,avg_ttl=3336299907

9. Get Total Number of Keys in a Database

127.0.0.1:6379> select 3
OK
127.0.0.1:6379> dbsize
(integer) 3

Backup and Restore

Full Backup

redis-cli -a admin@2020 save

Full Data Restore

Stop Redis, move the backup file dump.rdb to the Redis installation directory, then restart the Redis server to restore the data.

# Get data directory
127.0.0.1:6379> CONFIG GET dir
1) "dir"
2) "/data"